title: Materials design considerations involved in the fabrication of implantable bionics by metallization of ceramic substrates.
abstract: The Pt metallization of co-fired Al2O3/SiO2 substrates containing Pt feedthroughs was shown to be a suitable means to construct implantable bionics. The use of forge welding to join an electrode to such a metallized feedthrough was demonstrated and subsequently evaluated through the use of metallography and electron microscopy. Metallurgical phenomena involved in forge welding relevant to the fabrication of all types of biomedical implants are discussed within this paper. The affect of thermal profiles used in brazing or welding to build implantable devices from metal components is analysed and the case for considered selection of alloys in implant design is put forward.
authors.forename: Sunil
authors.initials: S
authors.lastname: Patel
authors.forename: Thomas
authors.initials: T
authors.lastname: Guenther
authors.forename: Christopher W D
authors.initials: CW
authors.lastname: Dodds
authors.forename: Sergej
authors.initials: S
authors.lastname: Kolke
authors.forename: Karen L
authors.initials: KL
authors.lastname: Privat
authors.forename: Paul B
authors.initials: PB
authors.lastname: Matteucci
authors.forename: Gregg J
authors.initials: GJ
authors.lastname: Suaning
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D001701:Bionics / Q000295:instrumentation* / Q000379:methods; D002516:Ceramics / Q000737:chemistry*; D004566:Electrodes; D004572:Electrolysis; D006801:Humans; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D010984:Platinum / Q000737:chemistry; D019736:Prostheses and Implants; D012822:Silicon Dioxide / Q000737:chemistry
chemical_list: D008670:Metals; D010984:Platinum; D012822:Silicon Dioxide; D000537:Aluminum Oxide